Appendix
106
400M01 Series User Manual
RAID 1 (Mirroring)
RAID 1 writes duplicate data onto a pair of drives and reads both sets of data in
parallel. If one of the mirrored drives suffers a mechanical failure or does not
respond, the remaining drive will continue to function. Due to redundancy, the
drive capacity of the array is the capacity of the smallest drive. Under a RAID 1
setup, an extra drive called the .spare drive. can be attached. Such a drive will be
activated to replace a failed drive that is part of a mirrored array. Due to the fault
tolerance, if any RAID 1
drive fails, data access will not be affected as long as
there are other working drives in the array.
JBOD (Spanning)
A spanning disk array is equal to the sum of the all drives when the drives used
are having different capacities. Spanning stores data onto a drive until it is full,
then proceeds to store files onto the next drive in the array. When any disk
member fails, the failure affects the entire array. JBOD is not really a RAID and
does not support fault tolerance.
2. Installing SATA Hard Disks
STEP 1: Install the SATA hard disks into the drive bays.
STEP 2: Connect one end of the SATA data cable to the motherboard’s primary
SATA connector (SATA_1).
STEP 3: Connect the other end of the SATA data cable to the master SATA hard
disk.
STEP 4: Connect one end of the second SATA data cable to the motherboard’s
secondary SATA connector (SATA_2).
STEP 5: Connect the other end of SATA data cable to the secondary SATA hard
disk.
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